Vampires have been haunting Hong Kong for centuries. Hidden in this city is an official special action unit coping with them - the Vampire Cleanup Department (VCD). The street cleaners out at night are actually vampire hunters, their giant garbage bins containing the captured vampires. The ordinary garbage station is their secret headquarter!

One day, a nerdy geek Tim Cheung (BabyJohn Choi) is accidentally rescued by VCD. The department advisor Uncle Chung (Ng Yiu-Hon) discovers his immunity against the vampire toxin. Owing to his unlimited potential, Team Captain Chau (Chin Siu- Ho), Magic Maoshan-taoist Ginger (Yuen Cheung-Yan), technical support specialist M (Bondy Chiu), and weapon expert Kui (Law Mon) teach him all their knowledge and skills in order to turn him into the next Vampire Hunter! However, Tim comes to feel sympathy for a pretty lady vampire called Summer. Eventually, he violates VCD's command and ends up living with her, triggering an attack from the Vampire King….